121 results
Visual Guide to AV Nodal Reentrant Tachycardia (AVNRT) - Pathophysiology
 - Dual AV nodal physiology is
Visual Guide to AV ... Nodal Reentrant ... Pathophysiology - Dual AV ... - In most case ... ECG usually shows
Causes of Tachycardia - Differential Diagnosis Algorithm
Narrow Complex - Regular:
 • Sinus tachycardia
 • Atrial flutter
Causes of Tachycardia ... Atrial flutter • AV ... nodal reentrant ... tachycardia • AV ... reentrant tachycardia
AVJ Impulse/Rhythm Disturbance in one slide
 • Impulse/Rhythms Originating in the AV Junction
 • Reentrant (reciprocal
Originating in the AV ... Junction • Reentrant ... cardiology #diagnosis #ekg ... #ecg #electrocardiogram
Anatomical Differential Diagnosis for Arrhythmias
 • SA node: Sinus bradycardia, Sick Sinus Syndrome (SSS)
 • AV
Syndrome (SSS) • AV ... node: AV re-entrant ... tachycardia (AVRT), AV ... nodal re-entrant ... Differential #Diagnosis #Causes
Causes of Thrombocytopenia - Differential Diagnosis Algorithm
 
Decreased Megakaryopoiesis
 • Aplastic Anemia
 • Toxic Damage (e.g.
Causes of Thrombocytopenia ... Toxic Damage (e.g ... Displacement (e.g ... • TTP/HUS • DIC ... Diagnosis #Algorithm #Causes
Digoxin effect on Electrocardiogram (EKG)
Digoxin is a cardiac glycoside from the foxglove leaf
Mechanism
 - Inhibits Na-K
Electrocardiogram (EKG ... - Decreases AV ... nodal conduction Uses ... Digoxin effect on ECG ... Cardiology #Digitalis #ECG
Approach to ECGs - Tachy/Bradyarrhythmias
Tachyarrhythmias - HR > 100
Wide
  (1) VT - DANGER
  (2)
Approach to ECGs ... rhythms (5) AV ... 200ms from longer pause ... block (lower AV ... bradyarrhythmia #ECG
Common sodium channel blockers which cause QRS widening.

Anticonvulsants: 
 - Carbamazepine 
Antidysrhythmics:  
 - Group
blockers which cause ... - Group IA and IC ... QRS #widening #ECG ... #EKG #Pharmacology ... Differential #Drugs #Classes
Summary of Heart Blocks
1st Degree Heart Block:
 • Prolonged PR >200ms (5 small squares).
 • Narrow
• No Treatment ... • Block in AV ... (block beyond AV ... summary #Diagnosis #EKG ... electrocardiogram #ecg
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
Intravascular Coagulation (DIC ... + Bleeding Treatment ... Treat primary cause ... Coagulation #diagnosis #causes ... #treatment #management